US3887648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing polymer compositions based on chlorinated polyethylene
Assignee: Resonac Holdings Corp
•
Filing: 1971-04-16
•
Granted: 1975-06-03
•
Expires: 1991-04-16
Abstract
Abstract In a method for producing a polymer composition by contacting A. a polymer component selected from the group consisting of chlorinated polyethylene and a mixture consisting of a major amount of chlorinated polyethylene and a minor amount of copolymer selected from an ethylene-propylene copolymer rubber, an ethylene-propylene-nonconjugated diene terpolymer rubber and an ethylene-vinyl acetate copolymer rubber, with B. a monomer mixture comprising B1. AT LEAST ONE OF STYRENE, ALPHA-METHYL STYRENE, TERTIARY BUTYL STYRENE AND CHLOROSTYRENE, AND B2. AT LEAST ONE OF ACRYLONITRILE AND METHACRYLONITRILE UNDER POLYMERIZATION CONDITIONS TO FORM AN INTERPOLYMER OF THE COMPONENTS (A) and (B), the improvement which comprises suspending polymer component (A) and monomer component (B) in the form of fine particles in an aqueous medium.
Inventors
- 👤 Akira Takahashi
- 👤 Hiroo Kojima
- 👤 Masao Ogawa
- 👤 Hiroshi Osuka
- 👤 Shoichi Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:10
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08F; C08F255/00; C08F255/02; C08F255/023; C08L51/00; C08L51/06; Y; Y10; Y10S; Y10S260/00; Y10S260/14; Y10S525/00; Y10S525/903
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
191 words
IN A METHOD FOR PRODUCING A THERMOPLASTIC RESIN COMPOSITION BY CONTACTING A. A POLYMER COMPONENT SELECTED FROM THE GROUP CONSISTING OF CHLORINATED POLYETHYLENE OF A DEGREE OF CHLORINATION OF 10-50% AND A MIXTURE CONSISTING OF 50-90% BY WEIGHT OF SAID CHLORINATED POLYETHYLENE AND 10-50% BY WEIGHT OF COPOLYMER SELECTED FROM AN ETHYLENE-PROPYLENE COPOLYMER RUBBER, AN ETHYLENE-PROPYLENE-NONCONJUGATED DIENE TERPOLYMER RUBBER AND AN ETHYLENNE-VINYLACETATE COPOLYMER RUBBER, WITH B. A MONOMER MIXTURE COMPRISING B1. AT LEAST ONE MONOMER SELECTED FROM STYRENE, ALPHAMETHYL STYRENE, TEERTIARY BUTYL STYRENE AND CHLOROSTYRENE, AND B2. AT LEAST ONE MONOMER SELECTED FROM ACRYLONITRILE AND METHACRYLONITRILE UNDER POLYMERIZATION CONDITIONS IN THE PRESENCE OF A POLYMERIZATION INITATOR TO FORM AN INTERPOLYMER OF COMPONENTS (A) AND (B), THE IMPROVEMENT WHICH COMPRISES SUSPENDING SAID POLYMER COMPONENT (A) AND MONOMER COMPONENT (B) IN THE FORM OF FINE PARTICLES IN A STATE OF SEPARATION FROM EACH OTHER IN AN AQUEOUS MEDIUM, SAID COMPONENT (A) HAVING A PARTICLE SIZE OF 5-150 TYLER MESH, THE WEIGHT RATIO OF SAID COMPONENT (A) TO COMPONENT (B) RANGING FROM ABOUT 10:90 TO ABOUT 65:35, SAID POLYMERIZATION INITATOR BEING MIXED IN SAID COMPONENT (B) PRIOR TO ITS SUSPENSION IN THE AQUEOUS MEDIUM.
Claim 2
Dependent Claim
191 words
IN A METHOD FOR PRODUCING A THERMOPLASTIC RESIN COMPOSITION BY CONTACTING A. A POLYMER COMPONENT SELECTED FROM THE GROUP CONSISTING OF CHLORINATED POLYETHYLENE OF A DEGREE OF CHLORINATION OF 10-50% AND A MIXTURE CONSISTING OF 50-90% BY WEIGHT OF SAID CHLORINATED POLYETHYLENE AND 10-50% BY WEIGHT OF COPOLYMER SELECTED FROM AN ETHYLENE-PROPYLENE COPOLYMER RUBBER, AN ETHYLENE-PROPYLENE-NONCONJUGATED DIENE TERPOLYMER RUBBER AND AN ETHYLENNE-VINYLACETATE COPOLYMER RUBBER, WITH B. A MONOMER MIXTURE COMPRISING B1. AT LEAST ONE MONOMER SELECTED FROM STYRENE, ALPHAMETHYL STYRENE, TEERTIARY BUTYL STYRENE AND CHLOROSTYRENE, AND B2. AT LEAST ONE MONOMER SELECTED FROM ACRYLONITRILE AND METHACRYLONITRILE UNDER POLYMERIZATION CONDITIONS IN THE PRESENCE OF A POLYMERIZATION INITATOR TO FORM AN INTERPOLYMER OF COMPONENTS (A) AND (B), THE IMPROVEMENT WHICH COMPRISES SUSPENDING SAID POLYMER COMPONENT (A) AND MONOMER COMPONENT (B) IN THE FORM OF FINE PARTICLES IN A STATE OF SEPARATION FROM EACH OTHER IN AN AQUEOUS MEDIUM, SAID COMPONENT (A) HAVING A PARTICLE SIZE OF 5-150 TYLER MESH, THE WEIGHT RATIO OF SAID COMPONENT (A) TO COMPONENT (B) RANGING FROM ABOUT 10:90 TO ABOUT 65:35, SAID POLYMERIZATION INITATOR BEING MIXED IN SAID COMPONENT (B) PRIOR TO ITS SUSPENSION IN THE AQUEOUS MEDIUM.
Claim 3
Dependent Claim
191 words
In a method for producing a thermoplastic resin composition by contacting A. a polymer component selected from the group consisting of chlorinated polyethylene of a degree of chlorination of 10-50% and a mixture consisting of 50-90% by weight of said chlorinated polyethylene and 10-50% by weight of copolymer selected from an ethylene-propylene copolymer rubber, an ethylene-propylene-nonconjugated diene terpolymer rubber and an ethylene-vinylacetate copolymer rubber, with B. a monomer mixture comprising b1. at least one monomer selected from styrene, alpha-methyl styrene, tertiary butyl styrene and chlorostyrene, and b2. at least one monomer selected from acrylonitrile and methacrylonitrile under polymerization conditions in the presence of a polymerizatioN initiator to form an interpolymer of components (A) and (B), the improvement which comprises suspending said polymer component (A) and monomer component (B) in the form of fine particles in a state of separation from each other in an aqueous medium, said component (A) having a particle size of 5-150 Tyler mesh, the weight ratio of said component (A) to component (B) ranging from about 10:90 to about 65:35, said polymerization initiator being mixed in said component (B) prior to its suspension in the aqueous medium.
Claim 4
Dependent Claim
191 words
In a method for producing a thermoplastic resin composition by contacting A. a polymer component selected from the group consisting of chlorinated polyethylene of a degree of chlorination of 10-50% and a mixture consisting of 50-90% by weight of said chlorinated polyethylene and 10-50% by weight of copolymer selected from an ethylene-propylene copolymer rubber, an ethylene-propylene-nonconjugated diene terpolymer rubber and an ethylene-vinylacetate copolymer rubber, with B. a monomer mixture comprising b1. at least one monomer selected from styrene, alpha-methyl styrene, tertiary butyl styrene and chlorostyrene, and b2. at least one monomer selected from acrylonitrile and methacrylonitrile under polymerization conditions in the presence of a polymerizatioN initiator to form an interpolymer of components (A) and (B), the improvement which comprises suspending said polymer component (A) and monomer component (B) in the form of fine particles in a state of separation from each other in an aqueous medium, said component (A) having a particle size of 5-150 Tyler mesh, the weight ratio of said component (A) to component (B) ranging from about 10:90 to about 65:35, said polymerization initiator being mixed in said component (B) prior to its suspension in the aqueous medium.
Claim 5
Dependent Claim
153 words
In a method for producing a thermoplastic resin composition by contacting A. a polymer component comprising a chlorinated polyethylene of a degree of chlorination of 10-50%, with B. a monomer mixture comprising b1. at least one monomer selected from styrene, alpha-methyl styrene, tertiary butyl styrene and chlorostyrene, and b2. at least one monomer selected from acrylonitrile and methacrylonitrile under polymerization conditions in the presence of a polymerization initiator to form an interpolymer of components (A) and (B), the improvement which comprises suspending said polymer component (A) and monomer component (B) in the form of fine particles in a state of separating from each other in an aqueous medium, said component (A) having a particle size of 5-150 Tyler mesh, the weight ratio of said component (A) to component (B) ranging from about 10:90 to about 65:35, said polymerization initiator being mixed in said component (B) prior to its suspension in the aqueous medium.
Claim 6
Dependent Claim
153 words
In a method for producing a thermoplastic resin composition by contacting A. a polymer component comprising a chlorinated polyethylene of a degree of chlorination of 10-50%, with B. a monomer mixture comprising b1. at least one monomer selected from styrene, alpha-methyl styrene, tertiary butyl styrene and chlorostyrene, and b2. at least one monomer selected from acrylonitrile and methacrylonitrile under polymerization conditions in the presence of a polymerization initiator to form an interpolymer of components (A) and (B), the improvement which comprises suspending said polymer component (A) and monomer component (B) in the form of fine particles in a state of separating from each other in an aqueous medium, said component (A) having a particle size of 5-150 Tyler mesh, the weight ratio of said component (A) to component (B) ranging from about 10:90 to about 65:35, said polymerization initiator being mixed in said component (B) prior to its suspension in the aqueous medium.
Claim 7
Dependent Claim
179 words
In a method for producing a thermoplastic resin composition by contacting A. a mixture consisting of 50-90% by weight of a chlorinated polyethylene of a degree of chlorination of 10-50% and 10-50% by weight of copolymer selected from an ethylene-propylene copolymer rubber, an ethylene-propylene-nonconjugated diene terpolymer rubber and an ethylene-vinylacetate copolymer rubber, with B. a monomer mixture comprising b1. at least one monomer selected from styrene, alpha-methyl styrene, tertiary butyl styrene and chlorostyrene, and b2. at least one monomer selected from acrylonitrile and methacrylonitrile under polymerization conditions in the presence of a polymerization initiator to form an interpolymer of components (A) and (B), the improvement which comprises suspending said polymer component (A) and monomer component (B) in the form of fine particles in a state of separation from each other in an aqueous medium, said component (A) having a particle size of 5-150 Tyler mesh, the weight ratio of said component (A) to component (B) ranging from about 10:90 to about 65:35, said polymerization initiator being mixed in said component (B) prior to its suspension in the aqueous medium.
Claim 8
Dependent Claim
179 words
In a method for producing a thermoplastic resin composition by contacting A. a mixture consisting of 50-90% by weight of a chlorinated polyethylene of a degree of chlorination of 10-50% and 10-50% by weight of copolymer selected from an ethylene-propylene copolymer rubber, an ethylene-propylene-nonconjugated diene terpolymer rubber and an ethylene-vinylacetate copolymer rubber, with B. a monomer mixture comprising b1. at least one monomer selected from styrene, alpha-methyl styrene, tertiary butyl styrene and chlorostyrene, and b2. at least one monomer selected from acrylonitrile and methacrylonitrile under polymerization conditions in the presence of a polymerization initiator to form an interpolymer of components (A) and (B), the improvement which comprises suspending said polymer component (A) and monomer component (B) in the form of fine particles in a state of separation from each other in an aqueous medium, said component (A) having a particle size of 5-150 Tyler mesh, the weight ratio of said component (A) to component (B) ranging from about 10:90 to about 65:35, said polymerization initiator being mixed in said component (B) prior to its suspension in the aqueous medium.
Claim 9
Dependent Claim
25 words
The method of claim 1 wherein said aqueous medium is used in an amount of 0.8-10-fold the total weight of said components (A) and (B).
Claim 10
Dependent Claim
14 words
The method of claim 1 wherein the polymerization temperature ranges from 50* to 150*C.
References Cited (Backward Citations)
US3496251A
Cited
US3558745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |